Relevant bibliographies by topics / Weirs

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Weirs'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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Journal articles on the topic "Weirs"

1

Yousif, Omed S. Q., and Moses Karakouzian. "Effect of Corner Shape on Hydraulic Performance of One-Cycle Rectangular Labyrinth Weirs." Fluids 5, no. 3 (2020): 117. http://dx.doi.org/10.3390/fluids5030117.

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The hydraulic performance of rectangular labyrinth weirs has been investigated by many researchers, however, the effects of the corner shape on the hydraulic performance of rectangular labyrinth weirs have not been addressed in the current literature. Accordingly, this experimental study aims to explore the effect of the corner shape of on discharge efficiency of rectangular labyrinth weirs. Five flat-crested rectangular labyrinth weirs, with five different corner shapes, were made of High-Density Polyethylene Plastic (HDPE) and tested in a rectangular flume. Under different overflow discharge
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Ghazizadeh, Farhad, and M. Azhdary Moghaddam. "An Experimental and Numerical Comparison of Flow Hydraulic Parameters in Circular Crested Weir Using Flow3D." Civil Engineering Journal 2, no. 1 (2016): 23–37. http://dx.doi.org/10.28991/cej-2016-00000010.

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Circular crested weirs consist of a circular crested of upstream and downstream walls. These weirs are widely used in hydraulic engineering as water discharge structures and can be used to control water level in channels and tanks. In the present study, using Flow3D software, hydraulic properties were investigated to find weir geometry optimization through CFD method. Also, this study attempted to investigate flow on some sections of circular crested weirs in 3 groups and 11 models. Upstream and downstream slope changes as well as the height of the weir were also studied. To validate the model
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Emiroglu, M. "Estimating Flow Characteristics of Different Weir Types and Optimum Dimensions of Downstream Receiving Pool." Journal of Hydrology and Hydromechanics 58, no. 4 (2010): 245–60. http://dx.doi.org/10.2478/v10098-010-0023-z.

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Estimating Flow Characteristics of Different Weir Types and Optimum Dimensions of Downstream Receiving PoolThis paper presents the results of a laboratory study on the flow characteristics of sharp-crested weirs, broad-crested weirs, and labyrinth weirs. The variation of the maximum bubble penetration depth for different weir types is investigated depending on overfall jet expansion, discharge, and drop height. Moreover, most efficient depth, length and width of the downstream receiving pool in an open channel system are studied by considering the penetration depth, overfall jet expansion, jet
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Hussain, Ruqiya Abed, Sawsan Abdullah Hassan, and Asmaa Abdul Jabbar Jamel. "Experimental Study on Flow over Triangular Labyrinth Weirs." International Journal of Design & Nature and Ecodynamics 17, no. 2 (2022): 249–55. http://dx.doi.org/10.18280/ijdne.170211.

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Recently, many research studies have focused on labyrinth weirs' hydraulic performance, especially as dependent on engineering features. In the current study, the hydraulic properties of flow over labyrinth triangular weirs models (from the upper perspective) with sharp crest have been experimentally studied and compare their efficiency with suppressed rectangular weirs (conventional weirs). Twelve fiberglass models are developed for this reason and tested in a 6m in length, 30cm in width, and 40cm height in laboratory flume, nine models were constructed for triangular labyrinth weirs and thre
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Yousif, Omed S. Q., Kawa Z. Abdulrahman, Wazira Qadir, Ahang S. Ali, and Moses Karakouzian. "Characteristics of Flow over Rectangular Labyrinth Weirs with Round Corners." Hydrology 8, no. 4 (2021): 158. http://dx.doi.org/10.3390/hydrology8040158.

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The hydraulic performance of round-cornered rectangular labyrinth weirs with varying weir heights and effective lengths has not been explored in the existing literature to the authors’ knowledge. The purpose of this experimental study was to see how the height and effective length of round-cornered rectangular labyrinth weirs affect their discharge efficiency. Nine flat-crested rectangular labyrinth weirs made of high-density polyethylene (HDPE) were tested in a rectangular flume under various discharges to fulfill the goals of this study. The discharge coefficients for the weirs were then cal
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Kılıç, Zeyneb. "Geometric and Hydraulic Properties of Arced Labyrinth Weirs." International Journal of Current Engineering and Technology 12, no. 02 (2022): 121–26. http://dx.doi.org/10.14741/ijcet/v.12.2.4.

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Weirs serve a critical role in dam safety. Numerous reservoirs' flood projections used in hydraulic design have risen in magnitude in recent years. As a result, many current spillways are no longer adequate since they do not fulfill current discharge capacity standards. Labyrinth weirs are frequently used to rehabilitate existing fixed width spillways. Weirs come in a variety of shapes and sizes, including labyrinth, linear, piano key, and more. Labyrinth weirs enhance the weir crest length for a given width, which increases the weir flow capacity. The majority of labyrinth weirs are designed
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A, Abo A. "Performance Against Cavity Index and Discharge Coefficient between Broad and Sharp Crested Weirs." Polytechnic Journal 12, no. 1 (2022): 103–7. http://dx.doi.org/10.25156/ptj.v12n1y2022.pp103-107.

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The purpose of this research is examining the performance of rectangular broad and sharp crested weirs in terms of cavity index and discharge coefficient. For this purpose, a computational fluid dynamics CFD code FLUENT is applied. Firstly, the code verified by applies on the experiments work of Hagre et al 1994 the results show excellent agreements between CFD and Hager et al 1994. Secondly the code applied on both broad and sharp crested weirs. The results demonstrate that broad crested weirs have a lower discharge coefficient than sharp crested weirs, implying that broad crested weirs have
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Rezazadeh, Shiva, Mohammad Manafpour, and Hamze Ebrahimnejadian. "Three-Dimensional Simulation of Flow Over Sharp-Crested Weirs Using Volume of Fluid Method." Journal of Applied Engineering Sciences 10, no. 1 (2020): 75–82. http://dx.doi.org/10.2478/jaes-2020-0012.

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AbstractIn sharp crested weirs, significant changes occur in the hydraulic characteristics of the flow past the weirs with different geometry. A detailed investigation and better understanding of hydraulic behavior will help practically to choose an appropriate geometry for weir. The purpose of this research is simulate the flow over sharp crested weir and investigate the effect of geometric shapes of sharp crested weirs on hydraulic characteristics of the flow such as pressure, velocity, water level profiles and discharge coefficients. Thus the limitation and usage range of sharp crested weir
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Emiroglu, M. Emin, and Ahmet Baylar. "Experimental Study of the Influence of Different Weir Types on the Rate of Air Entrainment." Water Quality Research Journal 38, no. 4 (2003): 769–83. http://dx.doi.org/10.2166/wqrj.2003.048.

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Abstract Aeration is used in water treatment to alter the concentration of dissolved gases, to strip volatile organics, and to reduce tastes and odours. This can be obtained by creating turbulence in the water. One method of producing such turbulence is via the overflow jets downstream of weir structures. This paper investigates the effect of varying weir types on the air entrainment rate. Empirical correlations predicting the maximum penetration depth and air entrainment rate were developed for different weir types. It is demonstrated that the air entrainment rate of the broad-crested weirs i
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Tian, Zhong, Wei Wang, Ruidi Bai, and Nan Li. "Effect of Flaring Gate Piers on Discharge Coefficient for Finite Crest-Length Weirs." Water 10, no. 10 (2018): 1349. http://dx.doi.org/10.3390/w10101349.

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The use of flaring gate piers (FGPs) along with finite crest-length weirs changes the shape of plunging jets and increases the efficiency of energy dissipation in some projects; however, the FGPs may affect the discharge capacity. In this study, the flow pattern and discharge coefficient were experimentally investigated under different conditions by varying the weir lengths Lw, contraction ratio β, contraction angle θ, and water heads H. A comparative analysis of the weirs with and without FGPs was performed. For the finite crest-length weirs with FGPs, the water-surface profiles in the flow c
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Dissertations / Theses on the topic "Weirs"

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Nalder, Guinevere Vivianne. "Submerged Thin Plate Weirs With Unequal Upstream and Downstream Beds." The University of Waikato, 2006. http://hdl.handle.net/10289/2383.

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This thesis describes a short study to examine the behaviour of submerged flow over a thin plate weir with differing upstream and downstream bed levels i.e. an unequal bed weir as opposed to an equal bed weir where the upstream and downstream beds are at the same level. As submerged weir flow is a function of downstream conditions, it was thought that a lower downstream bed would make submerged flow over the weir easier, This is turn suggested that; The shape of the upstream head (Hu) vs downstream head (Hd) graph would change, being initially more steep in the unequal bed case. The Froude
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Crookston, Brian Mark. "Labyrinth Weirs." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/802.

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Labyrinth weirs are often a favorable design option to regulate upstream water elevations and increase flow capacity; nevertheless, it can be difficult to engineer an optimal design due to the complex flow characteristics and the many geometric design variables of labyrinth weirs. This study was conducted to improve labyrinth weir design and analyses techniques using physical-model-based data sets from this and previous studies and by compiling published design methodologies and labyrinth weir information. A method for the hydraulic design and analyses of labyrinth weirs is presented. Disch
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Yilmaz, Aslican Nazli. "Hydraulic Characteristics Of Tyrolean Weirs." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612780/index.pdf.

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Tyrolean type water-intake structures are widely used on mountain rivers to provide water to hydropower stations. The main concern encountered in these kinds of structures is the amount of water diverted from the main channel and sediment carried by this flow. The diverted flow should not be less than the design discharge of the hydropower station and the amount of the sediment entering the hydraulic system should be minimum. In this study a physical model of a Tyrolean weir was constructed at the Hydromechanics Laboratory and by varying the dimensions of the various components of this system<
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Solis, Suraye Rori. "Estimating Flow Through Rock Weirs." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/90401.

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Rock weirs are small dam-like structures composed of large loose rock commonly found in ecological engineering design. By appearing more natural than concrete structures, rock weirs are preferred for use as hydraulic control structures in river engineering, stormwater management, and constructed wetlands. Rock weirs increase hydraulic head upstream, and facilitate fish passage, channel stabilization, floodplain reconnection, and in-stream habitat creation. When used in constructed wetlands, rock weirs play a valuable role in developing appropriate wetland hydrology. Although rock weirs are co
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Tingey, Samuel Egnew. "Discharge Coefficients of Oblique Weirs." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1010.

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Oblique weirs are those weirs placed at an angle with respect to the channel centerline. They can be used in canal applications where more discharge is needed, but there is limited freeboard. The discharge coefficients were determined for 54 different weirs by measuring total head for various flows over each weir. These weirs included sharp, half round and quarter-round-crested weirs. There were 18 weirs for each crest shape with three weir heights for each angle tested. The oblique angles tested were 10°, 15°, 25°, 45°, 60°, and 90° with respect to the channel centerline, with the nominal wei
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Christensen, Nathan A. "Flow Characteristics of Arced Labyrinth Weirs." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1367.

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The need to accommodate larger reservoir discharge events has prompted the improvement or replacement of existing spillways. One possible spillway modification is the use of an in-reservoir arced labyrinth weir in place of a linear weir. Arced labyrinth weirs can increase crest length (more cycles) and have improved hydraulic efficiency in non-channelized approach flow applications, compared to traditional labyrinth weir applications. In this study, arced labyrinth weir flow characteristics were observed for eleven different laboratory-scale model geometries at the Utah Water Research Laborato
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Thompson, Seth D. "Reservoir Applications of Arced Labyrinth Weirs." DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7700.

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In recent years, magnitudes of flood estimates used in hydraulic design have increased for many reservoirs. Consequently, many existing spillways are now deficient as they do not meet current discharge capacity requirements. To rehabilitate existing, fixed-width spillways, labyrinth weirs are often viable solutions. For reservoir applications, arcing labyrinth weirs into the reservoir increases hydraulic efficiency. This results from better cycle orientation to the approaching flow field. This study supplements available arced labyrinth weir hydraulic data by observing flow characteristics of
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Baumgartner, Lee Jason, and n/a. "Effects of weirs on fish movements in the Murray-Darling Basin." University of Canberra. Resource, Environmental & Heritage Sciences, 2005. http://erl.canberra.edu.au./public/adt-AUC20051129.142046.

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Dams and weirs are widely implicated in large-scale declines in both the range and abundance of aquatic fauna. Although many factors are involved, such declines are commonly attributed to the prevention or reduction of migration, reductions in available habitat, alteration of natural flow regimes and changes to physicochemical characteristics. In Australia, studies into the ecological effects of these impacts are limited, and have concentrated mainly on species of recreational and commercial importance. Subsequently, the adverse effects of dams and weirs, and suitable methods of mitigation, re
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Sisman, H. Cigdem. "Experimental Investigation On Sharp Crested Rectangular Weirs." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610919/index.pdf.

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Sharp crested rectangular weirs used for discharge measurement purposes in open channel hydraulics are investigated experimentally. A series of experiments were conducted by measuring discharge and head over the weir for different weir heights for full width weir. It is seen that after a certain weir height, head and discharge relation does not change. Hence a constant weir height is determined. For that height<br>discharge and head over the weir are measured for variable weir width, starting from the full width weir to slit weir. Description of the discharge coefficient valid for the f
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Gharahjeh, Siamak. "Experimental Investigation On Sharp Crested Rectangular Weirs." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614379/index.pdf.

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This study is an experimental research to formulate the discharge over sharp-crested rectangular weirs. Firstly, a series of measurements on different weir heights were conducted to find the minimum weir height for which channel bed friction has no effect on discharge capacity. After determining the appropriate weir height, weir width was reduced to collect data on discharge-water head over weir relationship for a variety of different weir openings. Then, the data was analyzed through regression analysis along with utilization of global optimization technique to reach the desired formulation f
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Books on the topic "Weirs"

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Huse, Warren D. The Weirs. Arcadia, 1996.

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ill, Hayes Karel 1949, and Gorey John ill, eds. The Weirs. Jetty House, 2013.

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H, Chanson, and Montes J. S, eds. Overflow characteristics of cylindrical weirs. University of Queensland, Dept. of Civil Engineering, 1997.

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Kotowski, Andrzej. Podstawy wymiarowania bocznych przelewów burzowych z rurą dławiącą. Oficyna Wydawnicza Politechniki Wrocławskiej, 1998.

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Trust, Five Weirs Walk, ed. Five Weirs Walk, River Don, Sheffield. [Five Weirs Walk Trust?], 1991.

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Juracek, Kyle E. Geomorphic effects of overflow dams on the lower Neosho River, Kansas. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Einhellig, Robert F. Hydraulic model study of the San Sevaine side-weir diversion to Jurupa Basin. U.S. Dept. of the Interior, Bureau of Reclamation, 2002.

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McCulloch, Urban F. Preliminary hydraulic study for improving the tidal flushing action in Graham Rogers Lake, North River causeway and sluice, Queens County. Urban F. McCulloch, 1987.

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Bednarczyk, Stefan. Stateczność oraz bezpieczeństwo jazów i zapór. Wydawn. Politechniki Gdańskiej, 2000.

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Norbert, Carstensen, ed. Flusswehranlagen. IRB Verlag, 1985.

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Book chapters on the topic "Weirs"

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Qiu, Peisheng, Yu Zhou, Linjie Wang, et al. "Study of Discharge Capacity of Curved Weir." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-7251-3_21.

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AbstractThe curved weir, as an innovative weir design, offers an extended upstream edge compared to orthogonal weirs, enhancing discharge capacity across its width and ensuring river flow safety. However, for rivers of fixed width, the effects of the curved configurations, partically the central angles, on hydraulic performance, warrant further investigation. This research uses FLOW-3D software to numerically simulate curved weir and orthogonal weir with different central angles (120°, 150° and 180°), and comparatively analyses the hydraulic characteristics of the two types of weirs under diff
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Kumar, Shiv. "Notches and Weirs." In Fluid Mechanics (Vol. 2). Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99754-0_9.

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Gebhardt, M., J. Merkel, F. Belzner, and C. Thorenz. "A comparison of side weirs and labyrinth weirs at Ilmenau river." In Labyrinth and Piano Key Weirs III – PKW 2017. CRC Press, 2017. http://dx.doi.org/10.1201/9781315169064-31.

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Rapp, Christoph. "Steady free surface flow." In Hydraulics in Civil Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-54860-4_13.

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AbstractSteady free surface flow is Chapter 13’s topic which starts with the consideration of sub- and supercritical flow. From the Bernoulli equation for free surfaces, we make our way to the consideration of flows under sluice gates or over weirs, through syphon weirs or Venturi channels. Subsequently steady-state, uniform conditions and the describing equations are elaborated before nonuniform conditions are discussed. The chapter ends with the direct step method, for which, again, open-source codes are provided. At the end of the chapter the reader can solve problems of nonuniform free sur
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Jaiswal, Akash, and Arun Goel. "Aeration Through Weirs—A Critical Review." In Lecture Notes in Civil Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6717-5_19.

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Jeffery, Bill. "Tidal Stone-Walled Fish Weirs across Asia-Pacific." In Sustainability in Ancient Island Societies. University Press of Florida, 2024. http://dx.doi.org/10.5744/florida/9780813069975.003.0007.

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Tidal stone-walled fish weirs and traps are extensive throughout the Asia-Pacific region. They are placed in the intertidal region and are used to catch various species of fish—their size, placement, style, and shape are determined with this in mind. In this chapter, I use a Cultural Heritage Management (CHM) approach to compare the fish weirs of Yap with those in Taiwan, the Philippines, and Kiribati. I consider whether fish weir cultural landscapes (and related cultural practices) reflect a cultural identity of people in these localities, and particularly an Austronesian cultural identity. I
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"Solid Weirs." In Fluid Mechanics for Civil Engineers. CRC Press, 2018. http://dx.doi.org/10.1201/9781315273426-65.

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Zhang, Yaoxin, Yafei Jia, Keh-Chia Yeh, and Chung-Ta Liao. "Erosion Control at Downstream of Reservoir Using In-stream Weirs." In Hydraulic Structures - Impact on River Flow and Sediment Transport-Dimensioning [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.108169.

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As low-head hydraulic structures, instream weirs are built across rivers to control the upstream water surface elevation and the downstream flow conditions. This chapter presents a study of erosion control using instream weirs at downstream of a reservoir; JiJi Weir was built across the longest river in Taiwan, Chuoshui Creek, a mountainous river with steep slopes. Due to the easy-to-be-eroded fine lithology layers of mud, shiver, and sandstones on channel bed, the downstream of JiJi Weir had suffered from severe channel incision and head-cut development problems, which greatly threatens the i
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Howe, W. H., and B. G. Lipták. "Weirs and Flumes." In Flow Measurement. CRC Press, 2020. http://dx.doi.org/10.1201/9781003063926-29.

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"Sharp-crested Weirs." In Fluid Mechanics for Civil Engineers. CRC Press, 2018. http://dx.doi.org/10.1201/9781315273426-64.

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Conference papers on the topic "Weirs"

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Anjum, Naveed, Jawad Ashraf, Muhammad Ahmad, Usman Ghani, Mohammad Hamza, and Asif Aziz. "Numerical Investigation of Flow Dynamics in a Sharp-Crested Weir with Variable Geometry." In 14th International Civil Engineering Conference. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-6how46.

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The diverse flow patterns observed in open channels with weir-type structures are common in natural environments such as rivers. However, the complex flow dynamics in these settings remain only partially understood. To address this research gap, a rectangular sharp-crested weir with variable geometric ratios crest heights (H/P) and widths (H/B) was numerically analyzed using CFD modeling in ANSYS Fluent. The primary objective of this study is to provide detailed numerical insights into flow characteristics over sharp-crested weirs with varying H/P and H/B, where H represents the head over the
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Morris, Kevin. "“All Fouled Up” – An Innovative Solution." In SSPC 2015 Greencoat. SSPC, 2015. https://doi.org/10.5006/s2015-00040.

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Abstract Within the Wastewater Treatment process the growth of soft fouling materials (algae) create problems such as Total Suspended Solids issues, false BOD readings, clogged pumps and reduced flow rates through the weirs of clarifiers. Furthermore, dead or dying algae can cause additional odor concerns. This phenomenon has cost municipalities and tax payer’s untold amounts of money due to the required maintenance dollars spent to correct this problem. This paper will present the readers with a view of some of the previous methods used to correct this problem and the effects caused by these
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Oliveira, Miguel Castro, Rita Castro Oliveira, Pedro M. Castro, and Henrique A. Matos. "The Paradigm of Water and Energy Integration Systems (WEIS): Methodology and Performance Indicators." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.130880.

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This work approaches a detailed characterization of the aspects inherent to the innovative paradigm of Water and Energy Integration Systems (WEIS). These consists in conceptual physical systems which consider all potential energy-using and water-using processes in a site, all potential recirculation of material and energy streams between these and the integration of several categories of state-of-the-art technologies. The WEIS have the ultimate aim to promote the sustainability character associated to existing installations (through the reduction of energy and water input and contaminants outp
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Slavevska-Stamenković, Valentina, Jelena Hinić-Jordanovska, Maja Raković, and Momir Paunović. "AQUATIC INVERTEBRATES AS KEY TOOL IN DEVELOPING METHODOLOGY AND IDENTIFICATION OF PRIORITY BARRIERS FOR REMOVAL." In 53rd Annual Conference of the Serbian Water Pollution Control Society. SERBIAN WATER POLLUTION CONTROL SOCIETY, 2024. http://dx.doi.org/10.46793/voda24.259ss.

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The aim of the study is to assess the effects of six weirs towards the macroinvertebrates and to establish methodology for selection of priority weirs for removal. Macroinvertebrates were collected from 12 sampling sites on the rivers Kriva Reka (2), Pcinja (8) and Kumanovska Reka (2) upstream and downstream of selected weirs. The degree of similarity of the macroinvertebrates above and below the weirs was used as ecological criteria to participate in determining which weirs could be subject to removal or could remain unchanged. Results showed that only weir below the city of Kriva Palanka cou
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Baddour, Raouf E. "Redesigning Compound Weirs as Polynomial Weirs." In World Environmental and Water Resources Congress 2019. American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482322.004.

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Jamil, Ary, and Diyar Qader. "Experimental Study for Measuring Flow Rate Using Broad-Crested Weirs." In 4th International Conference on Architectural & Civil Engineering Sciences. Cihan University-Erbil, 2023. http://dx.doi.org/10.24086/icace2022/paper.881.

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The broad-crested weir consider as a hydraulic components frequently used in irrigation as well as in drainage networks and water treatment plants. A rectangular broad-crested weir has various merits where it is essential to determine the measurement of a variety of discharges on natural streams. The laboratory measures used in this study were taken on a rectangular broad-crested weir shape at various flow rates to test the flow pattern above a rectangular broad-crested weir. Furthermore, a formula to calculate the discharge coefficient of rectangular broad-crested weirs is also offered to com
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D’Silva, Kiran M., Su-Seng Pang, and Kurt C. Schulz. "Effects of Weirs on the Resin Transfer Molding Process." In ASME 2001 Engineering Technology Conference on Energy. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/etce2001-17001.

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Abstract Low mold filling time and improper fiber wetting are the main problems faced by the manufacturers applying the Resin Transfer Molding (RTM) process. The objective of this work was to minimize these problems and to study the effect of weirs on the RTM process. A mold was designed such that the lower mold plate contains two weirs, one at the resin inlet port and the other at the outlet port. The purpose of adding the weirs is to provide a continuous inlet stream near the resin inlet port and to cause backpressure near the outlet port to induce complete mold filling. Laminated plates wer
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Onitsuka, Kouki, Juichiro Akiyama, Yohei Iiguni, Daisuke Kiuchi, and Noriaki Kawara. "Flow Stability in Pool-and-Weir Fishways, Plunging and Streaming Flows." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37331.

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In Japanese rivers, there are many river constructions, i.e., dams, weirs, drops, for the purpose of flood control. Fishways are river constructions which facilitate migration of fish past dams and weirs. There are a lot of fishway types such as pool-and-weir type, stream type, operation type and so on (see Nakamura, 1995). The pool-and-weir fishway is typical type in Japanese rivers. There are three types of flow regimes in pool-and-weir fishways such as a plunging flow, streaming flow and intermixed flow of plunging and streaming flows. Rajaratnam et al. (1988) proposed a prediction formula
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Thornton, C., S. Abt, D. Baird, and R. Padilla. "Hydraulics of bendway weirs." In RIVER BASIN MANAGEMENT 2007. WIT Press, 2007. http://dx.doi.org/10.2495/rm070371.

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Velazquez-Luna, Leandro, and Eusebio Ventura-Ramos. "Concentrated flow through gabions weirs." In 2017 XIII International Engineering Congress (CONIIN). IEEE, 2017. http://dx.doi.org/10.1109/coniin.2017.7968188.

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Reports on the topic "Weirs"

1

Figueroa, Steven, and Minwoo Son. Estuarine dams and weirs : global analysis and synthesis. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49804.

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Estuarine dams and weirs are constructed in estuaries for blocking the salt intrusion, securing freshwater, and stabilizing upstream water levels. While they can provide many social benefits, they also alter physical and sedimentary processes. To address this, we perform and extensive remote sensing and literature analysis. Remote sensing was conducted based on a global river database of 1531 rivers representing the largest rivers cumulatively draining 85 % of the landmass discharging into the global ocean. It was found that 9.7 % of global estuaries and deltas are currently affected by estuar
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Lyn, Dennis, and R. Cunningham. A Laboratory Study of Bendway weirs as a Bank Erosion Countermeasure. Purdue University, 2011. http://dx.doi.org/10.5703/1288284314249.

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Chanson, Hubert. Hydraulic modelling of half-round circular weirs: scaling considerations, non-linearities, instabilities, ventilation. School of Civil Engineering, The University of Queensland, 2024. http://dx.doi.org/10.14264/13436ec.

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Salter, David, Niloofar Sadeghi, Garry Thorncraft, et al., eds. Diversion Weirs and Fish Passages for Small-Scale Irrigation in the Lao People's Democratic Republic. Asian Development Bank, 2020. http://dx.doi.org/10.22617/arm200210.

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Pearson, Charles E., and Allen R. Saltus. Remote Sensing Survey and Evaluation of the American Pass and Blue Point Chute Weirs, Atchafalaya Channel Training Project, Louisiana. Defense Technical Information Center, 1989. http://dx.doi.org/10.21236/ada225282.

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Brown, Jasen, Robert Davinroy, Ivan Nguyen, et al. Tombigbee River : River Miles 81.0-76.0 sediment management study. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43942.

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The US Army Corps of Engineers, St. Louis District, Applied River Engineering Center (AREC), in cooperation with the Operations Branch of the Mobile District, conducted a sediment management study of the Sunflower Bend reach of the Tombigbee River, between River Miles 81.0 and 76.0, near Jackson, AL. The objective of the study was to look at sediment management alternatives to alleviate or eliminate repetitive maintenance dredging. These alternatives involved various river engineering measures including dikes, weirs, channel armoring, disposal armoring, and combinations thereof. A physical Hyd
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Vanden-Broeck, Jean-Marc, and Joseph B. Keller. Weir Flows. Defense Technical Information Center, 1986. http://dx.doi.org/10.21236/ada167495.

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Behera, Ajay Darshan. Pakistan, where democracy wears an army uniform. Edited by Bharat Bhushan. Monash University, 2024. http://dx.doi.org/10.54377/664c-80d6.

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Williams, Thomas. Cell Biology Board Game: Cell Life Cycle Top Trumps. University of Dundee, 2023. http://dx.doi.org/10.20933/100001277.

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All living things from whole people to single cells and even viruses have life cycles. Explore the weird and wonderful world of life cycles at the level of the cell in this top trumps inspired game. Print and cut out the cards, then play anywhere you want!
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Stockstill, Richard, Christopher Kees, and Charlie Berger. Modeling Free-Surface Flow Over a Weir. Defense Technical Information Center, 2006. http://dx.doi.org/10.21236/ada455417.

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